package com.ll.interceptor;

import com.ll.common.AccessDeniedEception;
import com.ll.common.MessageConstant;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

@Component
public class Authinterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
        if (session.getAttribute("user") == null) {
            throw  new AccessDeniedEception(MessageConstant.NOT_LOGIN);
        }
        return true;
    }
}
